mbed official
mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
Diff: targets/TARGET_STM/TARGET_STM32F0/device/stm32f0xx_ll_rtc.c
- Revision:
- 156:95d6b41a828b
- Child:
- 180:96ed750bd169
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_STM/TARGET_STM32F0/device/stm32f0xx_ll_rtc.c Mon Jan 16 15:03:32 2017 +0000
@@ -0,0 +1,742 @@
+/**
+ ******************************************************************************
+ * @file stm32f0xx_ll_rtc.c
+ * @author MCD Application Team
+ * @version V1.4.0
+ * @date 27-May-2016
+ * @brief RTC LL module driver.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+#if defined(USE_FULL_LL_DRIVER)
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f0xx_ll_rtc.h"
+#include "stm32f0xx_ll_cortex.h"
+#ifdef USE_FULL_ASSERT
+#include "stm32_assert.h"
+#else
+#define assert_param(expr) ((void)0U)
+#endif
+
+/** @addtogroup STM32F0xx_LL_Driver
+ * @{
+ */
+
+#if defined(RTC)
+
+/** @addtogroup RTC_LL
+ * @{
+ */
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private constants ---------------------------------------------------------*/
+/** @addtogroup RTC_LL_Private_Constants
+ * @{
+ */
+/* Default values used for prescaler */
+#define RTC_ASYNCH_PRESC_DEFAULT ((uint32_t) 0x0000007FU)
+#define RTC_SYNCH_PRESC_DEFAULT ((uint32_t) 0x000000FFU)
+
+/* Values used for timeout */
+#define RTC_INITMODE_TIMEOUT ((uint32_t) 1000U) /* 1s when tick set to 1ms */
+#define RTC_SYNCHRO_TIMEOUT ((uint32_t) 1000U) /* 1s when tick set to 1ms */
+/**
+ * @}
+ */
+
+/* Private macros ------------------------------------------------------------*/
+/** @addtogroup RTC_LL_Private_Macros
+ * @{
+ */
+
+#define IS_LL_RTC_HOURFORMAT(__VALUE__) (((__VALUE__) == LL_RTC_HOURFORMAT_24HOUR) \
+ || ((__VALUE__) == LL_RTC_HOURFORMAT_AMPM))
+
+#define IS_LL_RTC_ASYNCH_PREDIV(__VALUE__) ((__VALUE__) <= (uint32_t)0x7FU)
+
+#define IS_LL_RTC_SYNCH_PREDIV(__VALUE__) ((__VALUE__) <= (uint32_t)0x7FFFU)
+
+#define IS_LL_RTC_FORMAT(__VALUE__) (((__VALUE__) == LL_RTC_FORMAT_BIN) \
+ || ((__VALUE__) == LL_RTC_FORMAT_BCD))
+
+#define IS_LL_RTC_TIME_FORMAT(__VALUE__) (((__VALUE__) == LL_RTC_TIME_FORMAT_AM_OR_24) \
+ || ((__VALUE__) == LL_RTC_TIME_FORMAT_PM))
+
+#define IS_LL_RTC_HOUR12(__HOUR__) (((__HOUR__) > 0U) && ((__HOUR__) <= 12U))
+#define IS_LL_RTC_HOUR24(__HOUR__) ((__HOUR__) <= 23U)
+#define IS_LL_RTC_MINUTES(__MINUTES__) ((__MINUTES__) <= 59U)
+#define IS_LL_RTC_SECONDS(__SECONDS__) ((__SECONDS__) <= 59U)
+
+#define IS_LL_RTC_WEEKDAY(__VALUE__) (((__VALUE__) == LL_RTC_WEEKDAY_MONDAY) \
+ || ((__VALUE__) == LL_RTC_WEEKDAY_TUESDAY) \
+ || ((__VALUE__) == LL_RTC_WEEKDAY_WEDNESDAY) \
+ || ((__VALUE__) == LL_RTC_WEEKDAY_THURSDAY) \
+ || ((__VALUE__) == LL_RTC_WEEKDAY_FRIDAY) \
+ || ((__VALUE__) == LL_RTC_WEEKDAY_SATURDAY) \
+ || ((__VALUE__) == LL_RTC_WEEKDAY_SUNDAY))
+
+#define IS_LL_RTC_DAY(__DAY__) (((__DAY__) >= (uint32_t)1U) && ((__DAY__) <= (uint32_t)31U))
+
+#define IS_LL_RTC_MONTH(__VALUE__) (((__VALUE__) == LL_RTC_MONTH_JANUARY) \
+ || ((__VALUE__) == LL_RTC_MONTH_FEBRUARY) \
+ || ((__VALUE__) == LL_RTC_MONTH_MARCH) \
+ || ((__VALUE__) == LL_RTC_MONTH_APRIL) \
+ || ((__VALUE__) == LL_RTC_MONTH_MAY) \
+ || ((__VALUE__) == LL_RTC_MONTH_JUNE) \
+ || ((__VALUE__) == LL_RTC_MONTH_JULY) \
+ || ((__VALUE__) == LL_RTC_MONTH_AUGUST) \
+ || ((__VALUE__) == LL_RTC_MONTH_SEPTEMBER) \
+ || ((__VALUE__) == LL_RTC_MONTH_OCTOBER) \
+ || ((__VALUE__) == LL_RTC_MONTH_NOVEMBER) \
+ || ((__VALUE__) == LL_RTC_MONTH_DECEMBER))
+
+#define IS_LL_RTC_YEAR(__YEAR__) ((__YEAR__) <= 99U)
+
+#define IS_LL_RTC_ALMA_MASK(__VALUE__) (((__VALUE__) == LL_RTC_ALMA_MASK_NONE) \
+ || ((__VALUE__) == LL_RTC_ALMA_MASK_DATEWEEKDAY) \
+ || ((__VALUE__) == LL_RTC_ALMA_MASK_HOURS) \
+ || ((__VALUE__) == LL_RTC_ALMA_MASK_MINUTES) \
+ || ((__VALUE__) == LL_RTC_ALMA_MASK_SECONDS) \
+ || ((__VALUE__) == LL_RTC_ALMA_MASK_ALL))
+
+
+#define IS_LL_RTC_ALMA_DATE_WEEKDAY_SEL(__SEL__) (((__SEL__) == LL_RTC_ALMA_DATEWEEKDAYSEL_DATE) || \
+ ((__SEL__) == LL_RTC_ALMA_DATEWEEKDAYSEL_WEEKDAY))
+
+
+/**
+ * @}
+ */
+/* Private function prototypes -----------------------------------------------*/
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup RTC_LL_Exported_Functions
+ * @{
+ */
+
+/** @addtogroup RTC_LL_EF_Init
+ * @{
+ */
+
+/**
+ * @brief De-Initializes the RTC registers to their default reset values.
+ * @note This function doesn't reset the RTC Clock source and RTC Backup Data
+ * registers.
+ * @param RTCx RTC Instance
+ * @retval An ErrorStatus enumeration value:
+ * - SUCCESS: RTC registers are de-initialized
+ * - ERROR: RTC registers are not de-initialized
+ */
+ErrorStatus LL_RTC_DeInit(RTC_TypeDef *RTCx)
+{
+ ErrorStatus status = ERROR;
+
+ /* Check the parameter */
+ assert_param(IS_RTC_ALL_INSTANCE(RTCx));
+
+ /* Disable the write protection for RTC registers */
+ LL_RTC_DisableWriteProtection(RTCx);
+
+ /* Set Initialization mode */
+ if (LL_RTC_EnterInitMode(RTCx) != ERROR)
+ {
+ /* Reset TR, DR and CR registers */
+ LL_RTC_WriteReg(RTCx, TR, 0x00000000U);
+#if defined(RTC_WAKEUP_SUPPORT)
+ LL_RTC_WriteReg(RTCx, WUTR, RTC_WUTR_WUT);
+#endif /* RTC_WAKEUP_SUPPORT */
+ LL_RTC_WriteReg(RTCx, DR , (RTC_DR_WDU_0 | RTC_DR_MU_0 | RTC_DR_DU_0));
+ /* Reset All CR bits except CR[2:0] */
+#if defined(RTC_WAKEUP_SUPPORT)
+ LL_RTC_WriteReg(RTCx, CR, (LL_RTC_ReadReg(RTCx, CR) & RTC_CR_WUCKSEL));
+#else
+ LL_RTC_WriteReg(RTCx, CR, 0x00000000U);
+#endif /* RTC_WAKEUP_SUPPORT */
+ LL_RTC_WriteReg(RTCx, PRER, (RTC_PRER_PREDIV_A | RTC_SYNCH_PRESC_DEFAULT));
+ LL_RTC_WriteReg(RTCx, ALRMAR, 0x00000000U);
+ LL_RTC_WriteReg(RTCx, SHIFTR, 0x00000000U);
+ LL_RTC_WriteReg(RTCx, CALR, 0x00000000U);
+ LL_RTC_WriteReg(RTCx, ALRMASSR, 0x00000000U);
+
+ /* Reset ISR register and exit initialization mode */
+ LL_RTC_WriteReg(RTCx, ISR, 0x00000000U);
+
+ /* Reset Tamper and alternate functions configuration register */
+ LL_RTC_WriteReg(RTCx, TAFCR, 0x00000000U);
+
+ /* Wait till the RTC RSF flag is set */
+ status = LL_RTC_WaitForSynchro(RTCx);
+ }
+
+ /* Enable the write protection for RTC registers */
+ LL_RTC_EnableWriteProtection(RTCx);
+
+ return status;
+}
+
+/**
+ * @brief Initializes the RTC registers according to the specified parameters
+ * in RTC_InitStruct.
+ * @param RTCx RTC Instance
+ * @param RTC_InitStruct pointer to a @ref LL_RTC_InitTypeDef structure that contains
+ * the configuration information for the RTC peripheral.
+ * @note The RTC Prescaler register is write protected and can be written in
+ * initialization mode only.
+ * @retval An ErrorStatus enumeration value:
+ * - SUCCESS: RTC registers are initialized
+ * - ERROR: RTC registers are not initialized
+ */
+ErrorStatus LL_RTC_Init(RTC_TypeDef *RTCx, LL_RTC_InitTypeDef *RTC_InitStruct)
+{
+ ErrorStatus status = ERROR;
+
+ /* Check the parameters */
+ assert_param(IS_RTC_ALL_INSTANCE(RTCx));
+ assert_param(IS_LL_RTC_HOURFORMAT(RTC_InitStruct->HourFormat));
+ assert_param(IS_LL_RTC_ASYNCH_PREDIV(RTC_InitStruct->AsynchPrescaler));
+ assert_param(IS_LL_RTC_SYNCH_PREDIV(RTC_InitStruct->SynchPrescaler));
+
+ /* Disable the write protection for RTC registers */
+ LL_RTC_DisableWriteProtection(RTCx);
+
+ /* Set Initialization mode */
+ if (LL_RTC_EnterInitMode(RTCx) != ERROR)
+ {
+ /* Set Hour Format */
+ LL_RTC_SetHourFormat(RTCx, RTC_InitStruct->HourFormat);
+
+ /* Configure Synchronous and Asynchronous prescaler factor */
+ LL_RTC_SetSynchPrescaler(RTCx, RTC_InitStruct->SynchPrescaler);
+ LL_RTC_SetAsynchPrescaler(RTCx, RTC_InitStruct->AsynchPrescaler);
+
+ /* Exit Initialization mode */
+ LL_RTC_DisableInitMode(RTCx);
+
+ status = SUCCESS;
+ }
+ /* Enable the write protection for RTC registers */
+ LL_RTC_EnableWriteProtection(RTCx);
+
+ return status;
+}
+
+/**
+ * @brief Set each @ref LL_RTC_InitTypeDef field to default value.
+ * @param RTC_InitStruct pointer to a @ref LL_RTC_InitTypeDef structure which will be initialized.
+ * @retval None
+ */
+void LL_RTC_StructInit(LL_RTC_InitTypeDef *RTC_InitStruct)
+{
+ /* Set RTC_InitStruct fields to default values */
+ RTC_InitStruct->HourFormat = LL_RTC_HOURFORMAT_24HOUR;
+ RTC_InitStruct->AsynchPrescaler = RTC_ASYNCH_PRESC_DEFAULT;
+ RTC_InitStruct->SynchPrescaler = RTC_SYNCH_PRESC_DEFAULT;
+}
+
+/**
+ * @brief Set the RTC current time.
+ * @param RTCx RTC Instance
+ * @param RTC_Format This parameter can be one of the following values:
+ * @arg @ref LL_RTC_FORMAT_BIN
+ * @arg @ref LL_RTC_FORMAT_BCD
+ * @param RTC_TimeStruct pointer to a RTC_TimeTypeDef structure that contains
+ * the time configuration information for the RTC.
+ * @retval An ErrorStatus enumeration value:
+ * - SUCCESS: RTC Time register is configured
+ * - ERROR: RTC Time register is not configured
+ */
+ErrorStatus LL_RTC_TIME_Init(RTC_TypeDef *RTCx, uint32_t RTC_Format, LL_RTC_TimeTypeDef *RTC_TimeStruct)
+{
+ ErrorStatus status = ERROR;
+
+ /* Check the parameters */
+ assert_param(IS_RTC_ALL_INSTANCE(RTCx));
+ assert_param(IS_LL_RTC_FORMAT(RTC_Format));
+
+ if (RTC_Format == LL_RTC_FORMAT_BIN)
+ {
+ if (LL_RTC_GetHourFormat(RTCx) != LL_RTC_HOURFORMAT_24HOUR)
+ {
+ assert_param(IS_LL_RTC_HOUR12(RTC_TimeStruct->Hours));
+ assert_param(IS_LL_RTC_TIME_FORMAT(RTC_TimeStruct->TimeFormat));
+ }
+ else
+ {
+ RTC_TimeStruct->TimeFormat = 0x00U;
+ assert_param(IS_LL_RTC_HOUR24(RTC_TimeStruct->Hours));
+ }
+ assert_param(IS_LL_RTC_MINUTES(RTC_TimeStruct->Minutes));
+ assert_param(IS_LL_RTC_SECONDS(RTC_TimeStruct->Seconds));
+ }
+ else
+ {
+ if (LL_RTC_GetHourFormat(RTCx) != LL_RTC_HOURFORMAT_24HOUR)
+ {
+ assert_param(IS_LL_RTC_HOUR12(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Hours)));
+ assert_param(IS_LL_RTC_TIME_FORMAT(RTC_TimeStruct->TimeFormat));
+ }
+ else
+ {
+ RTC_TimeStruct->TimeFormat = 0x00U;
+ assert_param(IS_LL_RTC_HOUR24(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Hours)));
+ }
+ assert_param(IS_LL_RTC_MINUTES(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Minutes)));
+ assert_param(IS_LL_RTC_SECONDS(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Seconds)));
+ }
+
+ /* Disable the write protection for RTC registers */
+ LL_RTC_DisableWriteProtection(RTCx);
+
+ /* Set Initialization mode */
+ if (LL_RTC_EnterInitMode(RTCx) != ERROR)
+ {
+ /* Check the input parameters format */
+ if (RTC_Format != LL_RTC_FORMAT_BIN)
+ {
+ LL_RTC_TIME_Config(RTCx, RTC_TimeStruct->TimeFormat, RTC_TimeStruct->Hours,
+ RTC_TimeStruct->Minutes, RTC_TimeStruct->Seconds);
+ }
+ else
+ {
+ LL_RTC_TIME_Config(RTCx, RTC_TimeStruct->TimeFormat, __LL_RTC_CONVERT_BIN2BCD(RTC_TimeStruct->Hours),
+ __LL_RTC_CONVERT_BIN2BCD(RTC_TimeStruct->Minutes),
+ __LL_RTC_CONVERT_BIN2BCD(RTC_TimeStruct->Seconds));
+ }
+
+ /* Exit Initialization mode */
+ LL_RTC_DisableInitMode(RTC);
+
+ /* If RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
+ if (LL_RTC_IsShadowRegBypassEnabled(RTCx) == 0U)
+ {
+ status = LL_RTC_WaitForSynchro(RTCx);
+ }
+ else
+ {
+ status = SUCCESS;
+ }
+ }
+ /* Enable the write protection for RTC registers */
+ LL_RTC_EnableWriteProtection(RTCx);
+
+ return status;
+}
+
+/**
+ * @brief Set each @ref LL_RTC_TimeTypeDef field to default value (Time = 00h:00min:00sec).
+ * @param RTC_TimeStruct pointer to a @ref LL_RTC_TimeTypeDef structure which will be initialized.
+ * @retval None
+ */
+void LL_RTC_TIME_StructInit(LL_RTC_TimeTypeDef *RTC_TimeStruct)
+{
+ /* Time = 00h:00min:00sec */
+ RTC_TimeStruct->TimeFormat = LL_RTC_TIME_FORMAT_AM_OR_24;
+ RTC_TimeStruct->Hours = 0U;
+ RTC_TimeStruct->Minutes = 0U;
+ RTC_TimeStruct->Seconds = 0U;
+}
+
+/**
+ * @brief Set the RTC current date.
+ * @param RTCx RTC Instance
+ * @param RTC_Format This parameter can be one of the following values:
+ * @arg @ref LL_RTC_FORMAT_BIN
+ * @arg @ref LL_RTC_FORMAT_BCD
+ * @param RTC_DateStruct: pointer to a RTC_DateTypeDef structure that contains
+ * the date configuration information for the RTC.
+ * @retval An ErrorStatus enumeration value:
+ * - SUCCESS: RTC Day register is configured
+ * - ERROR: RTC Day register is not configured
+ */
+ErrorStatus LL_RTC_DATE_Init(RTC_TypeDef *RTCx, uint32_t RTC_Format, LL_RTC_DateTypeDef *RTC_DateStruct)
+{
+ ErrorStatus status = ERROR;
+
+ /* Check the parameters */
+ assert_param(IS_RTC_ALL_INSTANCE(RTCx));
+ assert_param(IS_LL_RTC_FORMAT(RTC_Format));
+
+ if ((RTC_Format == LL_RTC_FORMAT_BIN) && ((RTC_DateStruct->Month & 0x10U) == 0x10U))
+ {
+ RTC_DateStruct->Month = (RTC_DateStruct->Month & (uint32_t)~(0x10U)) + 0x0AU;
+ }
+ if (RTC_Format == LL_RTC_FORMAT_BIN)
+ {
+ assert_param(IS_LL_RTC_YEAR(RTC_DateStruct->Year));
+ assert_param(IS_LL_RTC_MONTH(RTC_DateStruct->Month));
+ assert_param(IS_LL_RTC_DAY(RTC_DateStruct->Day));
+ }
+ else
+ {
+ assert_param(IS_LL_RTC_YEAR(__LL_RTC_CONVERT_BCD2BIN(RTC_DateStruct->Year)));
+ assert_param(IS_LL_RTC_MONTH(__LL_RTC_CONVERT_BCD2BIN(RTC_DateStruct->Month)));
+ assert_param(IS_LL_RTC_DAY(__LL_RTC_CONVERT_BCD2BIN(RTC_DateStruct->Day)));
+ }
+ assert_param(IS_LL_RTC_WEEKDAY(RTC_DateStruct->WeekDay));
+
+ /* Disable the write protection for RTC registers */
+ LL_RTC_DisableWriteProtection(RTCx);
+
+ /* Set Initialization mode */
+ if (LL_RTC_EnterInitMode(RTCx) != ERROR)
+ {
+ /* Check the input parameters format */
+ if (RTC_Format != LL_RTC_FORMAT_BIN)
+ {
+ LL_RTC_DATE_Config(RTCx, RTC_DateStruct->WeekDay, RTC_DateStruct->Day, RTC_DateStruct->Month, RTC_DateStruct->Year);
+ }
+ else
+ {
+ LL_RTC_DATE_Config(RTCx, RTC_DateStruct->WeekDay, __LL_RTC_CONVERT_BIN2BCD(RTC_DateStruct->Day),
+ __LL_RTC_CONVERT_BIN2BCD(RTC_DateStruct->Month), __LL_RTC_CONVERT_BIN2BCD(RTC_DateStruct->Year));
+ }
+
+ /* Exit Initialization mode */
+ LL_RTC_DisableInitMode(RTC);
+
+ /* If RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
+ if (LL_RTC_IsShadowRegBypassEnabled(RTCx) == 0U)
+ {
+ status = LL_RTC_WaitForSynchro(RTCx);
+ }
+ else
+ {
+ status = SUCCESS;
+ }
+ }
+ /* Enable the write protection for RTC registers */
+ LL_RTC_EnableWriteProtection(RTCx);
+
+ return status;
+}
+
+/**
+ * @brief Set each @ref LL_RTC_DateTypeDef field to default value (date = Monday, January 01 xx00)
+ * @param RTC_DateStruct pointer to a @ref LL_RTC_DateTypeDef structure which will be initialized.
+ * @retval None
+ */
+void LL_RTC_DATE_StructInit(LL_RTC_DateTypeDef *RTC_DateStruct)
+{
+ /* Monday, January 01 xx00 */
+ RTC_DateStruct->WeekDay = LL_RTC_WEEKDAY_MONDAY;
+ RTC_DateStruct->Day = 1U;
+ RTC_DateStruct->Month = LL_RTC_MONTH_JANUARY;
+ RTC_DateStruct->Year = 0U;
+}
+
+/**
+ * @brief Set the RTC Alarm A.
+ * @note The Alarm register can only be written when the corresponding Alarm
+ * is disabled (Use @ref LL_RTC_ALMA_Disable function).
+ * @param RTCx RTC Instance
+ * @param RTC_Format This parameter can be one of the following values:
+ * @arg @ref LL_RTC_FORMAT_BIN
+ * @arg @ref LL_RTC_FORMAT_BCD
+ * @param RTC_AlarmStruct pointer to a @ref LL_RTC_AlarmTypeDef structure that
+ * contains the alarm configuration parameters.
+ * @retval An ErrorStatus enumeration value:
+ * - SUCCESS: ALARMA registers are configured
+ * - ERROR: ALARMA registers are not configured
+ */
+ErrorStatus LL_RTC_ALMA_Init(RTC_TypeDef *RTCx, uint32_t RTC_Format, LL_RTC_AlarmTypeDef *RTC_AlarmStruct)
+{
+ /* Check the parameters */
+ assert_param(IS_RTC_ALL_INSTANCE(RTCx));
+ assert_param(IS_LL_RTC_FORMAT(RTC_Format));
+ assert_param(IS_LL_RTC_ALMA_MASK(RTC_AlarmStruct->AlarmMask));
+ assert_param(IS_LL_RTC_ALMA_DATE_WEEKDAY_SEL(RTC_AlarmStruct->AlarmDateWeekDaySel));
+
+ if (RTC_Format == LL_RTC_FORMAT_BIN)
+ {
+ if (LL_RTC_GetHourFormat(RTCx) != LL_RTC_HOURFORMAT_24HOUR)
+ {
+ assert_param(IS_LL_RTC_HOUR12(RTC_AlarmStruct->AlarmTime.Hours));
+ assert_param(IS_LL_RTC_TIME_FORMAT(RTC_AlarmStruct->AlarmTime.TimeFormat));
+ }
+ else
+ {
+ RTC_AlarmStruct->AlarmTime.TimeFormat = 0x00U;
+ assert_param(IS_LL_RTC_HOUR24(RTC_AlarmStruct->AlarmTime.Hours));
+ }
+ assert_param(IS_LL_RTC_MINUTES(RTC_AlarmStruct->AlarmTime.Minutes));
+ assert_param(IS_LL_RTC_SECONDS(RTC_AlarmStruct->AlarmTime.Seconds));
+
+ if (RTC_AlarmStruct->AlarmDateWeekDaySel == LL_RTC_ALMA_DATEWEEKDAYSEL_DATE)
+ {
+ assert_param(IS_LL_RTC_DAY(RTC_AlarmStruct->AlarmDateWeekDay));
+ }
+ else
+ {
+ assert_param(IS_LL_RTC_WEEKDAY(RTC_AlarmStruct->AlarmDateWeekDay));
+ }
+ }
+ else
+ {
+ if (LL_RTC_GetHourFormat(RTCx) != LL_RTC_HOURFORMAT_24HOUR)
+ {
+ assert_param(IS_LL_RTC_HOUR12(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Hours)));
+ assert_param(IS_LL_RTC_TIME_FORMAT(RTC_AlarmStruct->AlarmTime.TimeFormat));
+ }
+ else
+ {
+ RTC_AlarmStruct->AlarmTime.TimeFormat = 0x00U;
+ assert_param(IS_LL_RTC_HOUR24(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Hours)));
+ }
+
+ assert_param(IS_LL_RTC_MINUTES(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Minutes)));
+ assert_param(IS_LL_RTC_SECONDS(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Seconds)));
+
+ if (RTC_AlarmStruct->AlarmDateWeekDaySel == LL_RTC_ALMA_DATEWEEKDAYSEL_DATE)
+ {
+ assert_param(IS_LL_RTC_DAY(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmDateWeekDay)));
+ }
+ else
+ {
+ assert_param(IS_LL_RTC_WEEKDAY(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmDateWeekDay)));
+ }
+ }
+
+ /* Disable the write protection for RTC registers */
+ LL_RTC_DisableWriteProtection(RTCx);
+
+ /* Select weekday selection */
+ if (RTC_AlarmStruct->AlarmDateWeekDaySel == LL_RTC_ALMA_DATEWEEKDAYSEL_DATE)
+ {
+ /* Set the date for ALARM */
+ LL_RTC_ALMA_DisableWeekday(RTCx);
+ if (RTC_Format != LL_RTC_FORMAT_BIN)
+ {
+ LL_RTC_ALMA_SetDay(RTCx, RTC_AlarmStruct->AlarmDateWeekDay);
+ }
+ else
+ {
+ LL_RTC_ALMA_SetDay(RTCx, __LL_RTC_CONVERT_BIN2BCD(RTC_AlarmStruct->AlarmDateWeekDay));
+ }
+ }
+ else
+ {
+ /* Set the week day for ALARM */
+ LL_RTC_ALMA_EnableWeekday(RTCx);
+ LL_RTC_ALMA_SetWeekDay(RTCx, RTC_AlarmStruct->AlarmDateWeekDay);
+ }
+
+ /* Configure the Alarm register */
+ if (RTC_Format != LL_RTC_FORMAT_BIN)
+ {
+ LL_RTC_ALMA_ConfigTime(RTCx, RTC_AlarmStruct->AlarmTime.TimeFormat, RTC_AlarmStruct->AlarmTime.Hours,
+ RTC_AlarmStruct->AlarmTime.Minutes, RTC_AlarmStruct->AlarmTime.Seconds);
+ }
+ else
+ {
+ LL_RTC_ALMA_ConfigTime(RTCx, RTC_AlarmStruct->AlarmTime.TimeFormat,
+ __LL_RTC_CONVERT_BIN2BCD(RTC_AlarmStruct->AlarmTime.Hours),
+ __LL_RTC_CONVERT_BIN2BCD(RTC_AlarmStruct->AlarmTime.Minutes),
+ __LL_RTC_CONVERT_BIN2BCD(RTC_AlarmStruct->AlarmTime.Seconds));
+ }
+ /* Set ALARM mask */
+ LL_RTC_ALMA_SetMask(RTCx, RTC_AlarmStruct->AlarmMask);
+
+ /* Enable the write protection for RTC registers */
+ LL_RTC_EnableWriteProtection(RTCx);
+
+ return SUCCESS;
+}
+
+/**
+ * @brief Set each @ref LL_RTC_AlarmTypeDef of ALARMA field to default value (Time = 00h:00mn:00sec /
+ * Day = 1st day of the month/Mask = all fields are masked).
+ * @param RTC_AlarmStruct pointer to a @ref LL_RTC_AlarmTypeDef structure which will be initialized.
+ * @retval None
+ */
+void LL_RTC_ALMA_StructInit(LL_RTC_AlarmTypeDef *RTC_AlarmStruct)
+{
+ /* Alarm Time Settings : Time = 00h:00mn:00sec */
+ RTC_AlarmStruct->AlarmTime.TimeFormat = LL_RTC_ALMA_TIME_FORMAT_AM;
+ RTC_AlarmStruct->AlarmTime.Hours = 0U;
+ RTC_AlarmStruct->AlarmTime.Minutes = 0U;
+ RTC_AlarmStruct->AlarmTime.Seconds = 0U;
+
+ /* Alarm Day Settings : Day = 1st day of the month */
+ RTC_AlarmStruct->AlarmDateWeekDaySel = LL_RTC_ALMA_DATEWEEKDAYSEL_DATE;
+ RTC_AlarmStruct->AlarmDateWeekDay = 1U;
+
+ /* Alarm Masks Settings : Mask = all fields are not masked */
+ RTC_AlarmStruct->AlarmMask = LL_RTC_ALMA_MASK_NONE;
+}
+
+/**
+ * @brief Enters the RTC Initialization mode.
+ * @note The RTC Initialization mode is write protected, use the
+ * @ref LL_RTC_DisableWriteProtection before calling this function.
+ * @param RTCx RTC Instance
+ * @retval An ErrorStatus enumeration value:
+ * - SUCCESS: RTC is in Init mode
+ * - ERROR: RTC is not in Init mode
+ */
+ErrorStatus LL_RTC_EnterInitMode(RTC_TypeDef *RTCx)
+{
+ __IO uint32_t timeout = RTC_INITMODE_TIMEOUT;
+ ErrorStatus status = SUCCESS;
+ uint32_t tmp = 0U;
+
+ /* Check the parameter */
+ assert_param(IS_RTC_ALL_INSTANCE(RTCx));
+
+ /* Check if the Initialization mode is set */
+ if (LL_RTC_IsActiveFlag_INIT(RTCx) == 0U)
+ {
+ /* Set the Initialization mode */
+ LL_RTC_EnableInitMode(RTCx);
+
+ /* Wait till RTC is in INIT state and if Time out is reached exit */
+ tmp = LL_RTC_IsActiveFlag_INIT(RTCx);
+ while ((timeout != 0U) && (tmp != 1U))
+ {
+ if (LL_SYSTICK_IsActiveCounterFlag() == 1U)
+ {
+ timeout --;
+ }
+ tmp = LL_RTC_IsActiveFlag_INIT(RTCx);
+ if (timeout == 0U)
+ {
+ status = ERROR;
+ }
+ }
+ }
+ return status;
+}
+
+/**
+ * @brief Exit the RTC Initialization mode.
+ * @note When the initialization sequence is complete, the calendar restarts
+ * counting after 4 RTCCLK cycles.
+ * @note The RTC Initialization mode is write protected, use the
+ * @ref LL_RTC_DisableWriteProtection before calling this function.
+ * @param RTCx RTC Instance
+ * @retval An ErrorStatus enumeration value:
+ * - SUCCESS: RTC exited from in Init mode
+ * - ERROR: Not applicable
+ */
+ErrorStatus LL_RTC_ExitInitMode(RTC_TypeDef *RTCx)
+{
+ /* Check the parameter */
+ assert_param(IS_RTC_ALL_INSTANCE(RTCx));
+
+ /* Disable initialization mode */
+ LL_RTC_DisableInitMode(RTCx);
+
+ return SUCCESS;
+}
+
+/**
+ * @brief Waits until the RTC Time and Day registers (RTC_TR and RTC_DR) are
+ * synchronized with RTC APB clock.
+ * @note The RTC Resynchronization mode is write protected, use the
+ * @ref LL_RTC_DisableWriteProtection before calling this function.
+ * @note To read the calendar through the shadow registers after Calendar
+ * initialization, calendar update or after wakeup from low power modes
+ * the software must first clear the RSF flag.
+ * The software must then wait until it is set again before reading
+ * the calendar, which means that the calendar registers have been
+ * correctly copied into the RTC_TR and RTC_DR shadow registers.
+ * @param RTCx RTC Instance
+ * @retval An ErrorStatus enumeration value:
+ * - SUCCESS: RTC registers are synchronised
+ * - ERROR: RTC registers are not synchronised
+ */
+ErrorStatus LL_RTC_WaitForSynchro(RTC_TypeDef *RTCx)
+{
+ __IO uint32_t timeout = RTC_SYNCHRO_TIMEOUT;
+ ErrorStatus status = SUCCESS;
+ uint32_t tmp = 0U;
+
+ /* Check the parameter */
+ assert_param(IS_RTC_ALL_INSTANCE(RTCx));
+
+ /* Clear RSF flag */
+ LL_RTC_ClearFlag_RS(RTCx);
+
+ /* Wait the registers to be synchronised */
+ tmp = LL_RTC_IsActiveFlag_RS(RTCx);
+ while ((timeout != 0U) && (tmp != 0U))
+ {
+ if (LL_SYSTICK_IsActiveCounterFlag() == 1U)
+ {
+ timeout--;
+ }
+ tmp = LL_RTC_IsActiveFlag_RS(RTCx);
+ if (timeout == 0U)
+ {
+ status = ERROR;
+ }
+ }
+
+ if (status != ERROR)
+ {
+ timeout = RTC_SYNCHRO_TIMEOUT;
+ tmp = LL_RTC_IsActiveFlag_RS(RTCx);
+ while ((timeout != 0U) && (tmp != 1U))
+ {
+ if (LL_SYSTICK_IsActiveCounterFlag() == 1U)
+ {
+ timeout--;
+ }
+ tmp = LL_RTC_IsActiveFlag_RS(RTCx);
+ if (timeout == 0U)
+ {
+ status = ERROR;
+ }
+ }
+ }
+
+ return (status);
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* defined(RTC) */
+
+/**
+ * @}
+ */
+
+#endif /* USE_FULL_LL_DRIVER */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
